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Formal Verfication of Components in Java
Parízek, Pavel ; Plášil, František (advisor) ; Černá, Ivana (referee) ; Pasareanu, Corina (referee)
Formal veri cation of a hierarchical component application involves (i) checking of behavior compliance among sub-components of each composite component, and (ii) checking of implementation of each primitive component against its behavior speci cation and other properties like absence of concurrency errors. In this thesis, we focus on veri cation of primitive components implemented in Java against the properties of obeying a behavior speci cation de ned in behavior protocols (frame protocol) and absence of concurrency errors. We use the Java PathFinder model checker as a core veri cation tool. We propose a set of techniques that address the key issues of formal veri cation of real-life components in Java via model checking: support for high-level property of obeying a behavior speci cation, environment modeling and construction, and state explosion. The techniques include (1) an extension to Java PathFinder that allows checking of Java code against a frame protocol, (2) automated generation of component environment from a model in the form of a behavior protocol, (3) efficient construction of the model of environment's behavior, and (4) addressing state explosion in discovery of concurrency errors via reduction of the level of parallelism in a component environment on the basis of static analysis of Java...
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Nuclear arms control, regulation and nuclear disarmament
Bříza, Vlastislav ; Ondřej, Jan (advisor) ; Šturma, Pavel (referee) ; Kozák, Kryštof (referee)
The dissertation concludes with the main points of the research and analyses in the above mentioned four pillars and also assesses the status of the efforts for nuclear arms control and nuclear disarmament in its whole history. However, the overall picture is a mixture of successes and failures and suggests that the only way to reach nuclear disarmament in a long way through step-by-step process that would also lead to reaching higher level of world peace and stability. However, even the idea of the world without nuclear weapons has its drawbacks as the dissertation tries to show. Especially with respect to change in the US administration in the early 2009 and its approach to nuclear disarmament, there also still remain many unanswered questions that are left for further research.
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Desulphurisation of flue gas fuidized bed boiler.
Miklík, Tomáš ; Slezák, Pavel (referee) ; Skála, Zdeněk (advisor)
The aim of this thesis is to design a desulphurization device for the fluid boiler. In the fluid boiler, fuel with extremely high sulphur content is burnt and the combustion products are not desulphurized to the required level, therefore it is necessary to build a desulphurization device. The thesis consists of two parts – theoretical and practical. In the theoretical part I stated the emission limits of sulphur dioxide, elaborated possible desulphurization methods and described the sorbets suitable for desulphurization. In the practical part I chose a dry desulphurization method with fluid reactor, to which a dry sorbent on the basis of lime hydrate is dosed. For the required parameters, I designed the whole desulphurization equipment including cloth filters, all necessary silos and major components. It is a design proposal with a layout and a spatial model.
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Effect of low doses of herbicide paraquat on antioxidant defense in Drosophila
SÁBOVÁ, Michala
Disruption of cell equilibrium between production of free radicals and antioxidant defence is named oxidative stress. The main component of antioxidant mechanism is activity of antioxidant enzymes, which include superoxide dismutase (SOD) and catalase. In this study we evaluated the effect of herbicide paraquat on response of SOD and catalase, their transcription level and locomotion activity in Drosophila melanogaster. We exposed the flies to a wide range of paraquat concentration. Our results revealed that transcript and enzymatic levels of both SOD and catalase have a similar biphasic dose response with the peaks at 2,5 ?M paraquat concentration, resembling hormetic effect. Then, males were more sensitive than females. However, females had an increased locomotion activity. We found that paraquat susceptibility is increased in males and mating flies. Therefore, this study supports hypothesis of stress sensitivity elevation as a physiological cost of reproduction.
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Rurální pohraničí Česka
Vaishar, Antonín
110 border microregions constituted by the catchment centres of authorized municipal authorities were demarcated during the analysis of the Czech borderland. The following facts were stated: a slightly better demographic situation of borderland (particularly the rural one), markedly lower educational level, higher unemployment which is however related to ther structural transition of economy, insufficient infrastructure. Future of the rural borderland is seen more in sustainable settlement than in economic development. Qualification structure seems to the main barrier of development and cross-border co-operation, in which social contacts are being created first while the actual economic co-operation is till at the beginning. Further research will be focused on the microregions of very small centres that might be considered the most problematic.
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Taxonomy of cloud services
Staňková, Zuzana ; Karkošková, Soňa (advisor) ; Vencovský, Filip (referee)
This thesis called "Taxonomy of cloud services" deals with description and categorization of services in the field of cloud computing. It aims to theoretically describe and approach this whole provisioning of ICT services model, to analyze the two leading providers of cloud services, and bring a new perspective on its taxonomy. The theoretical part defines the term cloud computing, its definition and a brief description of the history. Attention is paid to individual components, characteristics and infrastructure. It defines basic theoretical models of cloud computing categorization and at the end it devotes several chapters to security of the technology, its advantages and disadvantages, as well as the question of legislation. The practical part of the thesis concerns at first an analysis of two leading providers of cloud services, with the greatest attention given to examining the characteristics that these providers for their products give. Consequently, it creates a model for generalized multi-level taxonomy of services in the cloud based on the investigated characteristics. At the end of the practical part is the use of taxonomy demonstrated on simple application example and the entire work is summarized.
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Model of Level Measurement
Pavliš, Michal ; Zuth, Daniel (referee) ; Vdoleček, František (advisor)
This master's thesis is engaged in its theoretical part of the description and explanation principles and possibility how to the level measurement. There are clear up individual kinds and types of sensors to the level measurement. Further is described software and hardware which is employing to the measurement or control many systems and circuitry. A practical part consists in suggestion and self realization a model of level measurement including his controlling. Last but not least too creation partly instruction to attendance laboratory workspace and further creation several measuring and control software in the system named Control Web 6. Work is above all focusing on model approach of this problems needs for purposes laboratory teaching.
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Aromatic substances in spices
SVOBODOVÁ, Hana
The aim of this thesis was to create a teaching programme on the principles of research oriented teaching on the topic called ?Aromatic compounds substances in spices?. This programme could be used in the lessons and examine the level of students' knowledge gained after passing such training. The educational program was applied in two groups of respondents, one of which attended lessons where a research oriented teaching approach was used, working with a specially created worksheet. On the contrary, the second group attended lessons of frontal teaching. Then a comparative survey for these groups was conducted in a didactic test. A statistically significant difference of observed results was tested in Student t-test at the significance level of 0.05. In terms of statistical evaluation of the results of both tested groups was obvious the influence of research-oriented teaching on student's knowledge level.
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Multi level control omnidirectional robot
Pazdera, Miroslav ; Holý, Miroslav (referee) ; Lacko, Branislav (advisor)
The main focus of this diploma thesis is to design controlling system for robotic chassis moving on horizontal bolt nut of globular elements. This thesis includes analysis of movements of the chassis and definition of instructions for controlling level. Instructions for controlling level are compiled in constructed simulation programme. This thesis also contains design of electronic components and requirements for electronics of controlling subsystems.
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